test-example-projects/qt_projects/rt-thread-master/bsp/microchip/samc21

SAMC21J18A BSP Introduction

中文

• MCU: ATSAMC21J18A @64MHz, 256KB FLASH, 32KB RAM, 2.7V – 5.5V
• C21: Cortex-M0+ + Advanced Feature Set + 2x CAN-FD + Delta-Sigma ADC
• Pin: N=100 pins, J=64 pins, G=48 pins, E=32 pins
• Flash: 18=256KB, 17=128KB, 16=64KB , 15=32KB(size=2^n)
• SRAM : 32KB(Flash 256KB), 16KB(Flash 128KB), 8KB(Flash 64KB), 4KB(Flash 32KB)

Datasheet: https://www.microchip.com/en-us/product/ATSAMC21J18A

KEY FEATURES

Core

• 32-bit Arm® Cortex®-M0+ CPU running at up to 48 MHz or 64 MHz with Single-cycle hardware multiplier

Memories

• 32/64/128/256 KB in-system self-programmable Flash
• 1/2/4/8 KB independent self-programmable Flash for EEPROM emulation
• 4/8/16/32 KB SRAM main memory

System

• Power-on Reset (POR) and Brown-out Detection (BOD)
• Internal and external clock options with 48 MHz to 96 MHz Fractional Digital Phase Locked Loop (FDPLL96M)
• External Interrupt Controller (EIC) (Interrupt pin debouncing is only available in SAM C20/C21 N)
• 16 external interrupts
• One non-maskable interrupt
• Two-pin Serial Wire Debug (SWD) programming, test, and debugging interface

High-Performance Peripherals

• Hardware Divide and Square Root Accelerator (DIVAS)
• 12-channel Direct Memory Access Controller (DMAC)
• 12-channel Event System
• Up to eight 16-bit Timer/Counters (TC), configurable as either
• Two 24-bit and one 16-bit Timer/Counter for Control (TCC), with extended functions
• Frequency Meter (The division reference clock is only available in the SAM C21N)
• 32-bit Real Time Counter (RTC) with clock/calendar function
• Watchdog Timer (WDT)
• CRC-32 generator
• Up to two Controller Area Network (CAN) interfaces in the SAM C21
• Up to eight Serial Communication Interfaces (SERCOM), each configurable to operate as USART/I2C/SPI
• One Configurable Custom Logic (CCL)
• Up to Two 12-bit, 1 Msps Analog-to-Digital Converter (ADC) with up to 12 channels each (20 unique channels)
• One 16-bit Sigma-Delta Analog-to-Digital Converter (SDADC) with up to 3 differential channels in the SAM C21
• 10-bit, 350 ksps Digital-to-Analog Converter (DAC) in the SAM C21
• Up to four Analog Comparators (AC) with Window Compare function
• Integrated Temperature Sensor in the SAM C21
• Peripheral Touch Controller (PTC)
• 256-Channel capacitive touch

I/O

• Up to 84 programmable I/O pins

Qualification

• AEC - Q100 Grade 1 (-40°C to 125°C)

Voltage

• 2.7V – 5.5V
• -40°C to +125°C, DC to 48 MHz
• -40°C to +85°C, DC to 64 MHz

Packages

• 100-pin TQFP
• 64-pin TQFP, VQFN
• 56-pin WLCSP
• 48-pin TQFP, VQFN
• 32-pin TQFP, VQFN

Board info

• [SAM C21 XPLAINED PRO]（https://www.microchip.com/en-us/development-tool/ATSAMC21-XPRO）